(Perfect Fit for 4.5-5 Qt Mixers: Specifically designed for KitchenAid 4.5-5 Qt Tilt-Head stand mixers compatible with K45, K45SS, KSM75, KSM90). Professional Mixing Performance: The flat beater excels at blending thick cookie dough, creamy cake batter, smooth frosting, and fluffy mashed potatoes.